Sudoku

About Sudoku Unblocked

Sudoku unblocked is available to play for free online. Sudoku is the ultimate number-placement puzzle game featuring the classic 9x9 grid divided into nine 3x3 boxes. Fill every row, column, and 3x3 box with digits 1-9 without repeating any number. This version offers multiple difficulty levels from beginner-friendly easy puzzles to expert challenges that will test even seasoned players. Features include hint systems, error checking, notes mode for penciling in possibilities, and unlimited puzzles. Perfect for brain training, improving logical thinking, and enhancing concentration during your daily mental workout.

Game Screenshots

How to Play

• Click an empty cell to select it
• Enter a number (1-9) using keyboard or on-screen buttons
• Fill all cells so each row, column, and 3x3 box contains 1-9
• No number can repeat in the same row, column, or box
• Complete the puzzle correctly to win

Game Features

Game Tips & Strategies

• Start by filling in the easiest numbers first
• Use notes to mark possible numbers for difficult cells
• Look for rows, columns, or boxes with many filled numbers
• Use elimination strategy - what numbers can't go there?
• Practice daily to improve your solving speed and logic